There's been quite a bit of discussion about legacy doctypes on the mailing list, and I've also asked the TAG if any of them are interested in continuing with this change proposal. If I don't hear otherwise I will withdraw it.

Larry Masinter, 18 Feb 2010, 07:45:47

The HTML spec has been edited, apparently, to include some legacy doctypes.

So insofar as that's been done, it removes the need to link these two issues, and this action item is no longer necessary.Larry Masinter, 28 Feb 2010, 02:56:15